Optical Adjustment - Denon DVD-5000 Service Manual

DVD-5000 mm
OPTICAL ADJUSTMENT
[Slant Adjustment for the Disc Motor]
Measurement} Adjustment '
restores sate | wots | Toone
TL5206 Tit Play title 8,
; . _ | adjustment
GND: Chassis Sorew Pause
Measuring Equipment Adjustment Value
: Adjust until the bottom
Saalyeatey am section of the waveform
20 msec./div. becomes fiat and the DC
mee components are minimum.
2. Tilt adjustment screw
\ 1. Tangential adjustment screw
DVDT-S01
Slant adjustment of the disc motor is performed by the 2 screws
of the tangential adjustment screw and the tilt adjustment
screw, and it is adjusted from the bottom plate of the main
unit.
1. Play back the DVD test disc and then place the unit in play Points :
mode with titie 8, then push the Pause button. 1. Perform tilt adjustment after doing tangential adjustment.
2. Adjust the tangential adjustment screw and the tilt adjust- 2. Repeat this process alternately 2 to 3 times to find the best
ment screw alternately so that the waveform of TL5206 point.
becomes as shown in Figure below. 3. Final adjustment should be tilt adjustment.
TL5206 Correct Adjustment
In final, adjust the image so that the total DC level
becomes minimum (less than 1.6V in target).
During Adjustment
The valley section of the waveform should be as flat as
possible.
The waveform whisker section will not disappear.
Adjust it so that the total DC level becomes minimum.
Check the following after Adjusting
Check Video CD and CD-DA by playing-back if there is no abnormal operation, after adjustment.
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